Attachment for shapers or planers for forming key-seats and angular openings.



I J. E. SCHMIDT. ATTACHMENT FOR SHAPERS OR PLANERS FOR FORMING KEY SEATS AND ANGULAR OPENINGS.

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Patented Oct. 8, 1918.

JOHN E. SCHMIDT, or CHICAGO, ILLINoIs.

ATTACHMENT non SHAPERS 0R PLANERS non FoHMING KEY-SEATS" AND ANGULAR OPENINGS.

Application filed December 29, 1917.

To all whom it may concern:

Be it known that I, JOHN E. SCHMIDT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Attachments for Shapers or Planers for Forming Key-Seats and Angular Openings, of which the following is a specification.

This invention relates to improvements in a tool or attachment, to be used in connection with shapers or planers of the ordinary or well known type, for the purpose of forming key-seats or angular openings in gears, wheels, or other parts where such seats are required, and it consists in certain peculiarities of the construction, novel arrangement and operation of the various parts thereof as will be hereinafter more fully set forth and specifically claimed.

As is well known to those skilled in the art' to which my invention pertains, it is very desirable and necessary in many machine shops where shapers or planers are used, and where there is no key-seating machine, to afford means for attachment to the shaper or planer for forming key-seats and angular openings, and that heretofore, this has been accomplished by means of a goose neck tool which is attached to the head of the shaper or planer after the tool post thereof has been removed. A portion of this goose neck tool extends horizontally or substantially so, over the carriage and carries at its outer end the cutting tool for forming the key-seat or angular opening in the gear or stock to be operated on. The key-seats or openings thus formed are more or less inaccurate by reason of the springing or flexing of the goose neck or similar tool, andwith the employment of such a tool, the gear or stock being operated on has to be turned or manipulated.

The principal object of my invention is to provide an attachment of the first above mentioned general character, which shall be simple and inexpensive in construction, strong, durable, efficient and highly accurate in its operation. Another object of the invention is to provide such a tool or attachment that can be readily attached to or removed from the head of. a shaper or planer of the ordinary or well known construction, thereby rendering the shaper or planer capable of acting as two machines, that 1s,

Specification of Letters Patent.

Patented Oct. s, 1918.-

Se'ria'l No. 209,406.

as a: key-seating machine in' addition to its usual functions. Other objects and advantages of the invention will be disclosed in the subjoined description and explanation.

In the accompanying drawing which serves to illustrate an embodiment of the in vention,

Figure 1 is a view in side elevation of a fragment of a shaper or shaping machine, showing my newly invented attachment or tool applied thereto with the parts in position ready for operation.

F ig.*2 is an enlarged detached view partly in section and partly in elevation of the attachment, and

Fig. 3 is an end view thereof looking from the free end of the attachment.

Like numerals of reference refer to corresponding parts throughout the different views of the drawing.

Referring now to Fig. 1 of the drawing, the reference numeral 5 designates a portion of the frame of a shaper, which is provided as usual with a horizontally extended carriage 6 and a movable ram 7 located above said carriage. Mounted on the front end of the ram 7 is the head 8' of the machine to which my attachment is secured, after the tool post usually employed on said machine has been removed. As i well known the front face of the head 8 is provided with openingsv for the reception of screw bolts used to fasten the tool post thereto, and by preference, the inner upright end 9 of the bracket or body 10 of the attachment is provided with a pair of openings 11 to register with the openings in the head 8 and to receive bolts 12 employed for securing the end 9 of the bracket 10 thereto, although other means for detachably securing the bracket to the head 8 of the shaper or planer may be employed. As is clearly shown in Figs. 1 and 2 of the drawing the bracket or body 10 of the attachment, is substantially of an inverted U shape and that the lower portion of the inner upright part 9 of said bracket is provided with an opening 13 in which is j ournaled one end 14, which is preferably reduced, of the cutting tool shaft 15 which is journaled near its other end in a suitable opening 16 in the lower portion of the outer upright part 17 of the bracket or body of the attachment. The outer end of the shaft 15 is by preference angular in cros section, as shown at 18 in Figs. 1 and 3 of the drawing in order to be readily engaged by a wrench used for turning said shaft so as to properly adjust the cutting tool 19 thereon for forming key-seats or angular openings in the gears or other articles to be operated on. In Fig. 1 of the drawing a gear or wheel is shown by dotted lines in the act of having a key-seat formed therein, and i illustrated as being supported in an upright position and transversely with respect to the shaft 1.5, in which position it may be held by means of a bracket 21 mounted on the upper surface of the carrier 6 of the shaper or planer. As is clearly hown in Fig. 2 of the drawing the shaft 15 i provided at about its middle with a transverse opening 22 in which is located the cutting tool 19 which may be of the ordinary or any well known construction, and is held inv place by means of a retaining rod 23 located in the longitudinal opening extended from the outer end of the shaft 15 to the opening 22 in said shaft. The retaining or locking rod 23 is provided on its outer end with an angular head 24 by means of which said rod can be turned in the proper direction to fasten or release the cutting tool 19, thus providing means for the interchangeability of such tool of different types and for quickly and securely fastening them in position. The outer portion of the rod 23 is screw threaded and engages internal screw threads in the outer portion of the bore of the shaft 15 as is clearly shown in Fig. 2 of the drawing. In order to fix the shaft in its bearings and yet to permit it to easily be removed when desired, the bearing for said shaft at the lower end of the: upright 17 is split as at 25 and pro- "ided above and below said split with laterally extended apertured lugs 26 in which a screw bolt 27 is located, by turning which in the proper direction, it is apparent that the shaft 15 may be rigidly held in its operative position or by turning said bolt in the opposite direction said shaft may be released so that it can be withdrawn from the bracket or attachment.

By my improvements, it is obvious that asthe bracket or body 10 of the device is strong and rigid and can be firmly attached to the head of the shaper or planer,the production of key-seats or angular openings in gears, wheels and other articles will be produced in an absolutely accurate manner and that the article in which the keyseat or desired to form key-seats or one or more rectangular openings.

It is further manifest that my improved attachment can be made in various sizes so as to accommodate articles of various sizes to be operated on and that said devices can be easily and readily attached to or removed from a shaping machine or planer without the expenditure of much time or labor.v

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A device of the character described consisting of a single piece yoke shaped body or member having bearing openings near the extremities of its ends, a shaft journaled in said openings and carrying at a point intermediate of said openings a cutting tool, and means whereby said shaft may be rotatably adjusted.

2. A device of the character described consisting of a single piece yoke shaped body or member having bearing openings near the extremities of its ends, one of said bearing openings having clamping means, a shaft j ournaled in said openings and carrying at a point intermediate of said openings a cutting tool, and means whereby said shaft may be rotatably adjusted. I

JOHN E. SCHMIDT.

lVitnesses: v

CHAS. C. TILLMAN,

L. C. BERG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

